The phrase "gives peace of mind" can evoke a sense of relief or comfort. However, there are many antonyms or opposite words that can disrupt this peace. Some of these antonyms include worry, anxiety, stress, fear, and doubt. When a person experiences any of these emotions, their peace of mind is disrupted. For instance, when someone worries excessively about something, it can make them feel restless, even though no actual danger is present. Similarly, anxiety can make a person feel nervous and agitated about a situation that may not be a big deal. Therefore, it is crucial to address these negative emotions to restore one's peace of mind.